Park Chanyeol was a bad boy, tattoos, piercings, he smoked, he drank and a small boy, three years younger was his weakness. His name was Do Kyungsoo.
Do Kyungsoo was 15, he was innocent, pure and he was a good boy. He was scared of the gang of bad boys in year 13; the leaders name? Park Chanyeol.
What will happen when Chanyeol's gang and Kyungsoo and his friends have to work together? They have one thing in common, their passion is singing and dancing.